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authorTejun Heo <htejun@gmail.com>2007-12-05 07:43:09 (GMT)
committerJeff Garzik <jeff@garzik.org>2008-01-23 10:24:14 (GMT)
commit001102d7859be0e7f7b9f2d62b841f2c0f9c2640 (patch)
tree3ba29a129314307bafc5ac4e6cab49ee98eb8698 /include
parent55dba3120fbcbea6800f9a18503d25f73212a347 (diff)
downloadlinux-001102d7859be0e7f7b9f2d62b841f2c0f9c2640.tar.xz
libata: kill non-sg DMA interface
With atapi_request_sense() converted to use sg, there's no user of non-sg interface. Kill non-sg interface. * ATA_QCFLAG_SINGLE and ATA_QCFLAG_SG are removed. ATA_QCFLAG_DMAMAP is used instead. (this way no LLD change is necessary) * qc->buf_virt is removed. * ata_sg_init_one() and ata_sg_setup_one() are removed. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Rusty Russel <rusty@rustcorp.com.au> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/libata.h7
1 files changed, 1 insertions, 6 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 7fa96cb..acd90ad 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -219,9 +219,7 @@ enum {
/* struct ata_queued_cmd flags */
ATA_QCFLAG_ACTIVE = (1 << 0), /* cmd not yet ack'd to scsi lyer */
- ATA_QCFLAG_SG = (1 << 1), /* have s/g table? */
- ATA_QCFLAG_SINGLE = (1 << 2), /* no s/g, just a single buffer */
- ATA_QCFLAG_DMAMAP = ATA_QCFLAG_SG | ATA_QCFLAG_SINGLE,
+ ATA_QCFLAG_DMAMAP = (1 << 1), /* SG table is DMA mapped */
ATA_QCFLAG_IO = (1 << 3), /* standard IO command */
ATA_QCFLAG_RESULT_TF = (1 << 4), /* result TF requested */
ATA_QCFLAG_CLEAR_EXCL = (1 << 5), /* clear excl_link on completion */
@@ -475,7 +473,6 @@ struct ata_queued_cmd {
struct scatterlist sgent;
struct scatterlist pad_sgent;
- void *buf_virt;
/* DO NOT iterate over __sg manually, use ata_for_each_sg() */
struct scatterlist *__sg;
@@ -891,8 +888,6 @@ extern void ata_dumb_qc_prep(struct ata_queued_cmd *qc);
extern void ata_qc_prep(struct ata_queued_cmd *qc);
extern void ata_noop_qc_prep(struct ata_queued_cmd *qc);
extern unsigned int ata_qc_issue_prot(struct ata_queued_cmd *qc);
-extern void ata_sg_init_one(struct ata_queued_cmd *qc, void *buf,
- unsigned int buflen);
extern void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg,
unsigned int n_elem);
extern unsigned int ata_dev_classify(const struct ata_taskfile *tf);